Problem when braking

MaccaIRL · Post by **MaccaIRL** » Sat Jan 24, 2015 11:08 am

Weird feeling on the brake pedal but only 1/5 times i apply brakes

Feels like abs kicking in but no warning light on dash :/

Mechanic said it was warped discs and low pads so replaced the fronts and its still doing it

Anyone any ideas?
Flew through mot except for 2 upper steering arms (i think) and a balljoint all of which replaced

Car does pull to one side on occasion too but put that down to wheels needing alligned

Thanks in advance

Post by **ek9sid** » Sat Jan 24, 2015 11:18 am

Did you replace the pads or the discs as well?

Post by **vanzep** » Sat Jan 24, 2015 12:18 pm

There is a section in the manual on how to test your brake booster and master cylinder.

Ive had a few issues with brakes and finally sorted it out by fitting a new master cylinder. Had intermittent problem with pedal going to the floor normally in low speed town traffic was down to perished seal(s) in the mc. However my lude is a BB4 with no abs,tcs or 4ws so not a lot to check to find the problem but as your not getting any fault codes/warning lights it could be the same issue.

mercutio · Post by **mercutio** » Sat Jan 24, 2015 12:19 pm

get the alignment done first then go from there

hondaman · Post by **hondaman** » Sat Jan 24, 2015 2:41 pm

If it is warped discs the pedal will pulse when you apply the brakes if you just chaged the pads this won't stop the discs being warped , you'll need new discs as well.

hondansxr · Post by **hondansxr** » Sat Jan 24, 2015 6:40 pm

hi does it do it at high speed only or high speed and then when the speed scrubs off it dissipates ?
pulling to one side is caliper not working or low on efficency

MaccaIRL · Post by **MaccaIRL** » Sat Jan 24, 2015 7:06 pm

hondaman wrote:If it is warped discs the pedal will pulse when you apply the brakes if you just chaged the pads this won't stop the discs being warped , you'll need new discs as well.

Pads and discs changed on front

And no its just randomly, in traffic at 10mph get it sometimes, at 70mph on motorway i get it sometimes

Only difference / change at all is at higher speeds the bumps or whatever get more rapid... at 10mph you feel like youre in a learner car and they cant use the clutch lol

Its not as bad as it was now i have the warped discs and stuff replaced but its still there

As i said, flew through mot even with this happening so braking efficiency and all is passable

Will check to see if i have the mot slips and post the brake efficiency here

Post by **Vtecmec** » Sat Jan 24, 2015 7:09 pm

Pull the ABS fuse to disable it to see if it is the ABS kicking in or whether it's a mechanical issue.

MaccaIRL · Post by **MaccaIRL** » Sat Jan 24, 2015 7:13 pm

Brake efficiency at mot before pads and discs changed

Axle 1 (sb)
N/S 3.24 kN
O/S 3.51kN

Imbalance 8%

Brake fluctuation
N/S - 6%
O/S - 9%

Post by **ek9sid** » Sat Jan 24, 2015 7:51 pm

Did you change the rear pads and discs?

Lude Generation

Problem when braking

Problem when braking

Re: Problem when braking

Re: Problem when braking